EP 4332278 A1 20240306 - METHOD FOR ELECTROCHEMICAL SURFACE TREATMENT OF BIOMEDICAL PRODUCTS MADE OF TITANIUM OR TI-BASED ALLOYS
Title (en)
METHOD FOR ELECTROCHEMICAL SURFACE TREATMENT OF BIOMEDICAL PRODUCTS MADE OF TITANIUM OR TI-BASED ALLOYS
Title (de)
VERFAHREN ZUR ELEKTROCHEMISCHEN OBERFLÄCHENBEHANDLUNG VON BIOMEDIZINISCHEN PRODUKTEN AUS TITAN ODER TI-BASIERTEN LEGIERUNGEN
Title (fr)
PROCÉDÉ DE TRAITEMENT DE SURFACE ÉLECTROCHIMIQUE DE PRODUITS BIOMÉDICAUX EN TITANE OU EN ALLIAGES À BASE DE TI
Publication
Application
Priority
EP 22193733 A 20220902
Abstract (en)
The invention relates to the method for electrochemical surface treatment of biomedical product made of titanium or Ti-based alloys characterized in that it comprises the steps: Immersion of the degreased and cleaned biomedical product into the electrolyte consisting of Reline or Glyceline; galvanostatic etching treatment of the biomedical product at the current density 1 to 20 mA cm<sup>-2</sup> for 5 to 60 min. at a temperature 15 to 40 °C or potentiostatic etching treatment of the biomedical product at the potential 1 to 5 V for 5 to 60 min. at a temperature 15 to 40 °C; or galvanostatic electropolishing of the biomedical product at the current density 25 to 100 mA cm<sup>-2</sup> for 5 to 60 min. at a temperature 15 to 40 °C or potentiostatic electropolishing of the biomedical product at the potential 6 to 30 V for 5 to 60 min. at a temperature 15 to 40 °C; and subsequent cleaning of the biomedical product from electrolytes residuals.
IPC 8 full level
CPC (source: EP)
Citation (applicant)
- K.-H. KIMN. RAMASWAMY: "Electrochemical surface modification of titanium in dentistry", DENT. MATER., vol. 28, no. 1, 2009, pages 20 - 36
- B. WALIVAARA, B.O. ARONSSON, M. RODAHL, J. LAUSMAA, P. TENGVALL: "Titanium with different oxides: in vitro studies of protein adsorption and contact activation", BIOMATERIALS, vol. 15, no. 10, 1994, pages 827 - 834, XP024142220, DOI: 10.1016/0142-9612(94)90038-8
- KITYK A., PROTSENKO V., DANILOV F., PAVLIK V., HNATKO M., SOLTYS J: "Enhancement of the surface characteristics of Ti-based biomedical alloy by electropolishing in environmentally friendly deep eutectic solvent (Ethaline)", PHYSICOCHEMICAL AND ENGINEERING ASPECTS, vol. 613, 2021, pages 126125, XP086497144, DOI: 10.1016/j.colsurfa.2020.126125
- DAS J.FREITAS F.EVANS I.NOGUEIRA A.KHUSHALANI D.: "A facile nonaqueous route for fabricating titania nanorods and their viability in quasi-solid-state dye-sensitized solar cells", J. MATER. CHEM., vol. 20, 2010, pages 4425 - 4431
- CRISTINO A.FMATIAS I.A.S.BASTOS D.E.NGALHANO DOS SANTOS R.RIBEIRO A.P.C.MARTINS L.M.D.R.S.: "Glycerol Role in Nano Oxides Synthesis and Catalysis", CATALYSTS, vol. 10, 2020, pages 1406
- LI J.G., YANG X., ISHIGAKI T.: " Urea coordinated titanium trichloride Ti(III)[OC(NH)2]6C!3: a single molecular precursor yielding highly visible light responsive Ti02 nanocrystallites", J PHYS CHEM B, vol. 110, 2006, pages 14611 - 8
- RIVEST R: "Coordination complexes of titanium (IV) halides: III. preparation and infrared spectra of the complexes of titanium tetrachloride with urea, thiourea, and some of their derivatives", CANADIAN JOURNAL OF CHEMISTRY, vol. 40, 1962, pages 2234 - 2242
Citation (search report)
- [A] US 2004097755 A1 20040520 - ABBOTT ANDREW P [GB], et al
- [A] WO 2021115698 A1 20210617 - BIOTRONIK AG [CH]
- [A] LEBEDEVA OLGA ET AL: "Advantages of Electrochemical Polishing of Metals and Alloys in Ionic Liquids", METALS, vol. 11, no. 6, 14 June 2021 (2021-06-14), pages 959, XP093028452, DOI: 10.3390/met11060959
- [A] KARIM WRYA O ED - ZHENG BO: "Electropolishing of pure metallic titanium in a deep eutectic solvent", ARABIAN JOURNAL OF CHEMISTRY, ELSEVIER, AMSTERDAM, NL, vol. 14, no. 1, 16 November 2020 (2020-11-16), XP086418524, ISSN: 1878-5352, [retrieved on 20201116], DOI: 10.1016/J.ARABJC.2020.11.012
- [A] SMITH E L: "Deep eutectic solvents (DESs) and the metal finishing industry: where are they now?", TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING, MANEY PUBLISHING, BIRMINGHAM, GB, vol. 91, no. 5, 1 September 2013 (2013-09-01), pages 241 - 248, XP001591312, ISSN: 0020-2967, DOI: 10.1179/0020296713Z.000000000120
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4332278 A1 20240306; WO 2024049360 A2 20240307; WO 2024049360 A3 20240411
DOCDB simple family (application)
EP 22193733 A 20220902; SK 2023050024 W 20230824